A Cup of Comfort offers a great place for anthology submissions. The following is from the website.
A Cup of Comfort is a bestselling anthology (book) series featuring uplifting true stories about the experiences and relationships that inspire and enrich our lives. These slice-of-life stories are written by people from all walks of life [...]

Here is a list of current possible book topics running on Chicken Soup for the Soul. Take note of the deadlines as some are approaching more quickly than others!
Cancer Stories
We are collecting stories of support and discovery from people diagnosed with cancer and their families and support networks. The book will [...]

Conferences and Retreats

Writing & Yoga in the Berkshires http://www.writingretreats.org/

Tuition $605 by August 1, $655 after
Dates October 2-5, 2008
Genres Poetry, Fiction, Nonfiction, Playwriting, Children’s Lit

Writers Studio (Graham School [...]

Status Line http://memoirsink.com/

No Entry Fee
$100 Grand Prize
Due last day of month

Saturday Writers Short Story http://www.saturdaywriters.org/contest.htm

$5.00 Entry Fee
$100
September [...]

All contests are listed with an entry fee, first prize and the due date. Please check the site for complete submission guidelines and details.
August Contests

Ann Arbor Book Short Story http://www.aabookfestival.org/HTML/shortstoryguidelines.htm

$10 Entry Fee
$250
August 1, 2008

TNPR [...]